12722116 has 12 divisors (see below), whose sum is σ = 24287760. Its totient is φ = 5782760.

The previous prime is 12722107. The next prime is 12722119. The reversal of 12722116 is 61122721.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (12722119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144526 + ... + 144613.

It is an arithmetic number, because the mean of its divisors is an integer number (2023980).

Almost surely, 2^12722116 is an apocalyptic number.

It is an amenable number.

12722116 is a deficient number, since it is larger than the sum of its proper divisors (11565644).

12722116 is a wasteful number, since it uses less digits than its factorization.

12722116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289154 (or 289152 counting only the distinct ones).

The product of its digits is 336, while the sum is 22.

The square root of 12722116 is about 3566.8075361589. The cubic root of 12722116 is about 233.4460072603.

Adding to 12722116 its reverse (61122721), we get a palindrome (73844837).

The spelling of 12722116 in words is "twelve million, seven hundred twenty-two thousand, one hundred sixteen".